Frequent Questions

I?ve been working on the Stage 2 DBPR reporting form for our district, and am looking at the compliance calculation equations for operation evaluation levels (OELs) and locational running annual averages (LRAAs). I am taking into account the compliance ca

Failure to monitor at a location is a monitoring and reporting violation. Exceeding the OEL is a trigger for conducting an operational evaluation (OE), not a violation. The state can elect to require an OE for compliance or, using enforcement discretion, waive the requirement (e.g., because previous/anticipated analytical results indicate that exceeding the OEL was unlikely). State discretion, erring on the side of requiring the OE, is the best way to address this. Requiring the OE has benefits such as a diagnostic tool for potential TTHM or HAA5 MCL violations.
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